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Finding the Fourth Proportional to 417,587.60, 626,379.64 and 151,285.68

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Solution

The fourth proportional to 417,587.60, 626,379.64 and 151,285.68 is: 226,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,587.60 : 626,379.64 = 151,285.68 : x
  2. Step 2: Convert to fraction form
    417,587.60/626,379.64 = 151,285.68/x
  3. Step 3: Cross multiply
    417,587.60x = 626,379.64 × 151,285.68
  4. Step 4: Simplify right side
    417,587.60x = 94,762,269,775.56
  5. Step 5: Solve for x
    x = 94,762,269,775.56/417,587.60
  6. Step 6: Final answer
    x = 226,927.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.